Objects in the image:
category: skis
category: person
category: person
category: person
category: skis
category: person
category: skis
category: person
category: person
category: person
category: backpack
category: person
category: person

Guessing-game dialogue about one of the objects:
q: is it person?
a: No
q: black big object in the side?
a: No
q: is it something person wearing?
a: Yes
q: the ski board?
a: Yes
q: red color man in front his ski board?
a: No
q: behind him man in white his ski board?
a: No
q: Is it behind the guy with the white shirt and black pants, the ski board?
a: Yes
q: right leg ski board?
a: Yes